Very Computer

Hi,
Does anyone know whether

Rockwell 56.6

or USR 56.6

is compatible with Linux

Thanks,

Paula

Both will work fine. Since the 56K system is kept internal to the
modem, all Linux knows is that this is one heck of a fast modem.

Hope this helps
Richard Bowman

Quote:>>>>>>>>>>>>>>>>>> Original Messsage <<<<<<<<<<<<<<<<<<

Quote:

> Hi,
> Does anyone know whether

> Rockwell 56.6

> or USR 56.6

> is compatible with Linux

> Thanks,

> Paula

spake unto us, saying:

Quote:>Hi,
>Does anyone know whether

>Rockwell 56.6

>or USR 56.6

>is compatible with Linux

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The above opinions are my own and not those of ISM Corp., a subsidiary of
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spake unto us, saying:

Quote:>So, was V.90 based on the Rockwell or the USR standard?

--

           OS/2 Warp 4 + Linux + Executor = PC Hobbyist Heaven!
                   The Theorem Theorem: If If, Then Then.

Quote:>So, was V.90 based on the Rockwell or the USR standard?

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_________________________________________________________________________
The above opinions are my own and not those of ISM Corp., a subsidiary of
IBM Canada Ltd.

What is the V.90 standard and what oes it do for a modem?

Neil Zanella

BTW, the 56K is the *MAXIMUM* theoretical limit.  Current regulations limit
it to 53K and line conditions further limit speed.  Also that is only in one
direction, downloading to the user.  Upload speed is still limited to 33.6K
max.  Furthermore, 56K works only if there are no analog portions to the
connection, other than the local loop to the user.  The provider must have
ISDN or better connections.

--

_________________________________________________________________________
The above opinions are my own and not those of ISM Corp., a subsidiary of
IBM Canada Ltd.

: There were two competing 56K technologies.  X2 from USR (3Com) and K56 from
: Rockwell.  These were developed into the V.90 spec, which all new and most
: older modems will use.

: BTW, the 56K is the *MAXIMUM* theoretical limit.  Current regulations limit
: it to 53K and line conditions further limit speed.

One thing to watch out for - V.90 is still beta - expected ratification
is slated for September '98, if I remember correctly.

My ISP activated V.90 for a little while; with my external USR 56K Faxmodem
(they dropped the "Sportster" name, but it's still a Sportster...), I
noticed a drop in throughput with V.90.  When FTP'ing compressed
files, I get about 5.2 KB/s with X2, but about 4.8 KB/s with V.90,
on the same line, dialing into the same local POP.

According to Stephen Schmidt of AIS, USR is being conservative with
initial V.90 code releases for their Total Control racks, which explains
the slowdown.

For the ex-Sportster, set S32=66 to disable V.90 while allowing X2.
For the Courier, set S58=32 for the same result.

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